In other U.S. elections, candidates are elected directly by popular vote. But the president and vice president are not elected directly by citizens. Instead, they're chosen by “electors” through a process called the Electoral College. The process of using electors comes from the Constitution.
D, because that one starts with "why" which automatically opens it up for an argument. While the others are just simply statements or just a basic question.
The term melting pot means a mix of cultures and traditions from all people in the United States. There is not one specific culture for the whole country
